F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
244/108, 137/44
F04F 5/52 (2006.01) B64D 15/16 (2006.01)
Patent
CA 1286195
ABSTRACT OF THE DISCLOSURE A self-regulating vacuum control valve with a needle valve operating in a narrow central bore that regulates the flow of pressurized air from a pressure source into such narrow central bore for passage and discharge from an enlarged bore. A vacuum is pulled in passageways in such enlarged bore which exert a vacuum pull on a control chamber and on one end of a disphragm means. The diaphragm means is connected to the needle valve and has its one end subjected to atmospheric pressure. Such diaphragm and needle valve are spring biased to increase the air flow past such needle valve in opposition to the vacuum pull on such diaphragm. Such spring bias is adjustable to provide a predetermind vacuum pull on the control chamber that can be connected to a deicer pad for maintaining a predetermined vacuum pull thereon.
529964
Swabey Ogilvy Renault
The B.f. Goodrich Company
LandOfFree
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